Add to bread-dough a little more sugar, and enough flour to make a stiff dough. Roll it to one eighth inch thickness. Cut it into strips six inches wide, and then into sharp triangles. Roll them up, commencing at the base; the point of the triangle will then come in the middle of the roll. Turn the points around into the shape of crescents. Place on tins to rise for half an hour, brush the tops with water, and bake until lightly colored. When taken from the oven brush the tops with thin boiled cornstarch water, and place again for a minute in the oven to glaze.